systemc: Add a stub implementation for sc_attr related classes.

Change-Id: I59ba11f71b5412643ea7026df91587fafa0c6fda
Reviewed-on: https://gem5-review.googlesource.com/10832
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Gabe Black <gabeblack@google.com>

src/systemc/SConscript

@@ -32,6 +32,7 @@ if env['USE_SYSTEMC']:
 
     Source('kernel.cc')
 
+    Source('sc_attr.cc')
     Source('sc_event.cc')
     Source('sc_export.cc')
     Source('sc_interface.cc')

src/systemc/sc_attr.cc

@@ -0,0 +1,93 @@
+/*
+ * Copyright 2018 Google, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Authors: Gabe Black
+ */
+
+#include "systemc/sc_attr.hh"
+
+#include "base/logging.hh"
+
+namespace sc_core
+{
+
+sc_attr_base::sc_attr_base(const std::string &)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+sc_attr_base::sc_attr_base(const sc_attr_base &)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+sc_attr_base::~sc_attr_base()
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+const std::string &
+sc_attr_base::name() const
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+    return *(const std::string *)nullptr;
+}
+
+void
+sc_attr_base::warn_unimpl(const char *func)
+{
+    warn("%s not implemented.\n", func);
+}
+
+sc_attr_cltn::iterator
+sc_attr_cltn::begin()
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+    return (iterator)nullptr;
+}
+
+sc_attr_cltn::const_iterator
+sc_attr_cltn::begin() const
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+    return (const_iterator)nullptr;
+}
+
+sc_attr_cltn::iterator
+sc_attr_cltn::end()
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+    return (iterator)nullptr;
+}
+
+sc_attr_cltn::const_iterator
+sc_attr_cltn::end() const
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+    return (const_iterator)nullptr;
+}
+
+} // namespace sc_core

src/systemc/sc_attr.hh

@@ -0,0 +1,98 @@
+/*
+ * Copyright 2018 Google, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Authors: Gabe Black
+ */
+
+#ifndef __SYSTEMC_SC_ATTR_HH__
+#define __SYSTEMC_SC_ATTR_HH__
+
+#include <string>
+
+namespace sc_core
+{
+
+class sc_attr_base
+{
+  public:
+    sc_attr_base(const std::string &);
+    sc_attr_base(const sc_attr_base &);
+    virtual ~sc_attr_base();
+
+    const std::string &name() const;
+
+  protected:
+    void warn_unimpl(const char *func);
+
+  private:
+    // Disabled
+    sc_attr_base();
+    sc_attr_base &operator = (const sc_attr_base &);
+};
+
+template <class T>
+class sc_attribute : public sc_attr_base
+{
+  public:
+    sc_attribute(const std::string &_name) : sc_attr_base(_name)
+    {
+        warn_unimpl(__PRETTY_FUNCTION__);
+    }
+    sc_attribute(const std::string &_name, const T &t) :
+        sc_attr_base(_name), value(t)
+    {
+        warn_unimpl(__PRETTY_FUNCTION__);
+    }
+    sc_attribute(const sc_attribute<T> &other) :
+        sc_attr_base(other.name()), value(other.value)
+    {
+        warn_unimpl(__PRETTY_FUNCTION__);
+    }
+    virtual ~sc_attribute() { warn_unimpl(__PRETTY_FUNCTION__); }
+    T value;
+
+  private:
+    // Disabled
+    sc_attribute() {}
+    sc_attribute<T> &operator = (const sc_attribute<T> &) { return *this; }
+};
+
+class sc_attr_cltn
+{
+  public:
+    typedef sc_attr_base *elem_type;
+    typedef elem_type *iterator;
+    typedef const elem_type *const_iterator;
+
+    iterator begin();
+    const_iterator begin() const;
+    iterator end();
+    const_iterator end() const;
+};
+
+} // namespace sc_core
+
+#endif  //__SYSTEMC_SC_ATTR_HH__